Adding-machine.



PATENTBD AUG. 11, 1908.

F. R. PIPER. ADDING MACHINE.

APPLICATION FILED MAR 20, 1908 W I/g2 nu Wvtmmm Mum To all whom it may .Be-it the-c '5%'1n1l ve:inventeda; new and ment. in Adding-Machines, lowing is 'a'specification. a hefinvention relates to I ehanic'allyl adding I v o means of. disksyand providemeans' for. coordin -me a one-disk with ano areattainedby the eon'struction meclianism and arrangement illustrated v drawings", in Which. x I A Figure-Lie ampl'an VieW-of-the' adding ma 7 some;parts broken away to disclose 1 details of. the mechanismpFig. 2,:-a: 1 transverse section onthe axis. of one disk i chine showing I Fi -3,721" detached perspec 1 coordinating mechanism; Fig .v 4-;.a'detached Wheel and 'Fig i View ofoneresetting pinion. "I Similar numerals- 1 "-'tl1roughout the drawings.-

- all {sides 0f: the" ease, with fjflanges 3, over jare adap series o i as hy'rivetinq or otherwise, the case; and {on the'upgder mediately 'n'nderneathft bly."mo11ntedfthe series which disks are provide which the n. the cover of the case a res' pective' disks and :adap annular rowiof'lndentatlons g fi figures';, thereon. "t1ire's fhie also provided 111 i Y case, adjacent to the disk 0p known that I, FRANK RQPIPER itizen of: the United states residin'g at Can-: 1 ount y 'of Stark and Statexo'f Ohio, ,J'

.of whicht M01 I 1;,On thedisks, and the s two or more a series of-'rota'table coordinated the objects of'the turning all the disks to a zero osition bya' singleandsimpleoperation. hese'objeets i refer. to

gThe' case of the machine is preferably -..-of the body 1 an'd the'eover2 edges of the-c over ted tolbe'vtnrned andtfastened. The pivot posts 4 are securely fastened;

:of numeral disks 1 5 I the holes or.

distingllishd by-A fe 'le figiires, which i 0 i I i i "i hediskponeheindentation F 4 mm-m m I w a devise for mef numbers by" invention are .to

ating the movether, andfor re;-

tive-iview of the perspective under vsitleviewof; the ratchet 'ofwhiol'l the H5; a 'deta'ehedi perspective.

parts 1 made f andifor con rably ressedor form t e bottom the 'lpelipheral' to thebottom/of j endithereof; im-' e gover, are. r0tata" 1 the bottom of'th ratchet Wheel, and these 'locat'eddon'lthe face' tosto the ratchet 'wheels a ainst a reverse fnumberwith the j re; prev ew a s- I "specificatioliof I etters Patent! fPateIitedA ug- ;11,1908. sA plication filedlhthrehfZQ,1908.

w 2 2 5 17 I .1 v

dion' the upper Side: of the same as ,the maohineisi-vi'ewed bythe. operator, and these aperturesare adapted (top-expose, one at a time, the; res ecti've l'fi g'ures, on the disk.-

Around? the dis are indicated thesameserjiesoffi es shown t'o]' oshoulld:i Sis provided on the cover "in the diskopening, so that the, disks are adaptedtb be maniulated by a -pencil point, stylus, orv other. tooi: fin the manner usually. employed in, .T machines of thischara'eter'. The ratchet Wheels19 are n'rotatably'mounted "on the ;pivot p o'sts and. ,are formed on. i

or "fastened a to the ,numeral diskswithfivhio theyareadaptedto rotate.

The coordinating "mechanisms. are each composed ofth'ezswinging frame ,1 Ofpivoted on the ends of the linksil 1*whichin turn are pivoted tothe"case,- 'preferablyltojthe bottom nearo'ne sidezthereof. -Atpne end of the swinging frame: is formed. or attached the arm; '12, the; end of which is 'locatedin the path of. the lug- '13 formed orgattachjed on the side ofjthe adj acentratchet-Wheel, by means frame is adapted to be swung by 1 the 'lu' when the; ratchet is rotated the for- 1 Ward, ireetion', asin'dicatedby arrows in the detent l4isformed drawings; jand the spring or fastened on the other end of' .the swingin frame, and is. adapted to engage I with the teeth of-thenext adjoining/ratchet. wheel,

and tolcommum'categto thesame the move* ment of the swingin frame. The s, ring 15, extending between't e fixed pivot fQ v one link and f the swinging; pivot of: the :o posite link, is adapted to return and hold ,t eswinging frame to its normal position against; the stop post '1 6 which "is fastened; to'the bottom of the case, "1 v I i The springstop detent's 1'7 :are' fastened to detents' are adapted or bag ward rotation. "It'w' l be understood that the [number :of teeth in each "ratchet wheehcorrespon'ds with thehumber'of nilm'erals e1; figures employed? on the respective i k according. to .the system of enumerad" d-thatfthe swinging disk the disrt:

-saw j m a ly 'the cover of the mounted on the plvot posts, and xare free to enings, and prefslide endvvise hereon. The ends of the pine case; one at the-side off each use the springs 20 for the purpose of holding ions are normally held against the hubs 19 of the ratchet wheels by means of the coilsprings 20 located around the ivot posts between the pinions and the lEottom of the case, in the latter of which the springs are referably slightly countersunk, as shown.

he end ofeach ratchet wheel hub is notched or inclined at one side to form the shoulder 21 in which notch and against which shoulder the tongue 22 formed or attached on the adjacent end of the pinion is adapted to operate. The rack-bar 23 is mounted endwise in the case and adapted to mesh with each one of the resetting pinions. The rack-bar is adapted to be moved endwise, by sliding in the earings 24 provided in the end Walls of the case, and is normally held in its inoperative position bya spring, as the coil-spring 20 located around the bar between one end of the case and the stop shoulder 25 on the bar. The other end of the bar is arranged to project from the end of'the case and is preferably provided with the thumb button 26, and it is evident that by pressing against this end of'the bar, the same will slide endwise against the action of the spring and will rotate all the resetting pinions in unison.

The parts are so'ar'ranged that when any one numeral disk is rotated forward, the tongue on the end of the resetting pinion will slide and ride out of the inclined notch and on the end of the hub of the ratchet wheel, in doing which the coilspring which acts to hold the pinion against the hub, is compressed and the hub is moved endwise along the pivot 0st away from the hub, the hub being held against rotation by its engagement with the rackbar; and that when the resetting pinions are all rotated in unison by an endwise movement of the rack bar, the pinion. tongues will engage in the notches against the shoulders one the hub of the ratchet wheels, and willvrotate each wheel forward to its zero osition, by means of which all the numer disks are reset in unison to the proper position for adding a new series of numbers.

The longitudinal slots 27 are preferably provided in the rack-bar, and are adapted to 0 erate on the pins or posts 28, thus olding t e rack-bar in mesh with the respective pinions throughout its length; and it will be understood that when this form.of guides is employed, the operation of the end bar through the bearin 24 in the end of the case is neither, essentia nor necessary. It will also be understood that it is not essential to the pinions up against the hubs of I the ratchet wheels, and whenthi's spring is not em loyed, the weight of the ratchet wheels an the superimposed disks can be depended upon for this purpose, in which event the disks and wheels are together arranged to slide endwise on the pivot posts.

. thereof, inclined notches bly mounted on What I claim as my invention, and desire to secure by Letters Patent, is-

1. In an adding machine having a case with a series of pivot posts therein, a series of numeral disks and ratchet wheels rotatably'mounted on the posts and automatic detents in the case adapted to stop the ratchet wheels against backward rotation; a disk-coordinating mechanism comprising links pivoted at one end to the case, a springcontrolled frame pivoted to the other endsof the links, a spring-controlled detent on the frame adapted to operate on the teeth of one ratchet wheel to rotate it forward, and a lug on an adjacent ratchet wheel adapted to abut and swing the frame during a certain portion of the rotation of the adjacent wheel.

2. In an adding machine having a case witha series of pivot posts therein, a series of numeral disks and ratchet wheels rotatably mounted on the posts and automatic detents in the case adapted to stop the ratchet wheels against backward rotation; a diskresetting mechanism comprising a series of endwise-slidable rotatable pinions on the pivot posts having tongues on the ends with shoulders in the adjoining portions of the'ratchet. wheels adapted to receive and engage the tongues, springs acting to hold the pinions against the ratchet wheels, and an endwise-slidable spring-controlled rack-bar in the case adapted to rotate the pinions in unison.

3. In an adding machine having a case with a series of pivot posts therein, a series of numeral disks and ratchet wheels rotatably mounted on the osts and automatic detents inthe case, adapted to stop the ratchet wheels against backward rotation; a disk-resetting mechanism com rising a series of endwise-slidable rotatab e pinions .on the pivot posts having tongues on the ends thereof, inclined notches with shoulders in the adjoining portions of the ratchet wheels adapted to receive and engage the tongues, springs acting to hold the pinions against the ratchet wheels, and an endwiseslidable rack-bar in the case adapted to retate the pinions in unison.

4. In an adding machine with a series of pivot posts therein, a series of numeral disks and ratchet wheels rotatathe posts and automatic detents in the case adapted to stop the ratchet wheels against backward rotation; a diskresetting mechanism comprising a series of rotatable pinions on the pivot osts having tongues on the ends thereof, inc ined notches with shoulders in the adjoining portions of the ratchet wheels ada ted to receive and engage the, tongues, an an endwise slidable rack-bar in the .case' adapted to rotate the pinions in unison.

5. In an adding machine having a case with a series of pivot posts therein, a series having a case j of numera ldisks and ratohet wheelsfrotatathereor anu lnclined notches with shoulders I I H bly'mounted 011' the posts and automatic dein the adjoining portions of the ratchet Wheels li tents 1n thecase a daiptedto stop the ratchet adapted to VIGCGIVG and en a e the ton es. 1

wheels agamst backward rotation; a'disk-g'e- ,FRA R. .PIPE 15; settingmeehan-ismfcomprising a-series of pin-t Witnesses:

" ions adapted (to be rotated in unison on the, RUTH A. M1 L ER,

7 pivot posts and eving tongues on the ends JosEPH FREAS J 

